ALT Figure 3. Example data from the TERRA-REF gantry system. (top left) RGB data (center top) RGB data with soil masked (top right) close up of RGB data. 3D-scanner data (center row, right to left) depth, reflectance, surface normals, and point cloud data produced by the 3D scanner. (bottom row, right to left) FLIR thermal image with transpiring leaves shown as cooler than soil; Fv/Fm derived from active fluorescence PSII sensor providing a measure of photosynthetic efficiency; the reflectance of light at 543nm wavelength measured by the VNIR hyperspectral camera. Because these are two-dimensional representations of three-dimensional systems, all scale bars are approximate.